Fencing strip



Nov. 28, 1961 E. KLEMM 3,010,701

FENCING STRIP Original Filed Nov. 9, 1953 INVENTOR ERNST KLEMM BYMW United States Patent 3,010,701 FENCING STRIP Ernst Klemm, Gernsbach, Baden, Germany, assignor to Hans Berg, Bad Godesberg, Germany Original application Nov. 9, 1953, Ser. No. 391,073, now

Patent No. 2,908,132, dated Oct. 13, 1959. Divided and this application May 8, 1959, Ser. No. 811,897

Claims. (Cl. 256-8) The present invention relates to a fencing strip.

More particularly, the present invention relates to a fencing strip adapted to be laid by strip twisting and dispensing device of the type disclosed and claimed in my co-pending application Serial No. 391,073, filed November 9, 1953, now Patent 2,908,132, of which this application is a division. The device shown in Patent 2,908,132 comprises a carrier for carrying the coil of the strip the loops of which are superposed upon each other, this carrier being so constructed and arranged as to permit unwinding of the strip when its free end is anchored and the carrier is moved away from the anchored end. The device further includes twisting means for imparting a twist to the strip as the same unwinds from the coil during movement thereof away from the anchored end of the strip so that the strip is twisted by the force acting upon the coil to move the latter away from the anchored end of the strip.

A thus-laid strip may form a fence or other deterrent obstacle, the effectiveness of which may be increased by so fashioning the strip that it presents not only sharp points or barbs but also cutting edges.

It is therefore an object of the present invention to provide a fencing strip which presents both sharp points as well as cutting edgesv It is another object of the present invention to provide a fencing strip which may be laid easily and safely, particularly by means of a strip dispensing and twisting device of the type shown in abovementioned Patent 2,908,132. To this end the strip should be deformable and capable of retaining a twist and, when in untwisted state, of being coiled to form a coil the confulations of which are superposed upon each other.

The objects of the present invention also include the provision of a twistable fencing strip which may be manufactured easily and inexpensively.

With the above objects in view, the present invention mainly resides in the provision of a fencing strip having a substantially flat cross-section and made of hard flexible material. The strip is deformable and capable of retaining a twist and, when in an untwisted state, of being coiled to form a coil the convulations of which are superposed upon each other. Furthermore, the strip is formed on each side with a series of spaced cut-outs which leave the strip on each side with a series of spaced edge portions each of which is pointed at both of its ends and has between its points an elongated edge that extends in the direction of the strip.

Additional objects and advantages of the present invention will become apparent upon consideration of the following detailed description taken in conjunction with the accompanying drawing in which:

FIG. 1 shows a fencing strip according to the present invention, in untwisted state;

FIG. 2 shows the same fencing strip in twisted state drawn to a reduced scale;

FIG. 3 is a sectional view taken on line 3-3 of FIG. 1; and

FIG. 4 shows the untwisted fencing strip in the form of a coil drawn to a reduced scale.

Referring now to the drawing, there is shown a fencing 3,010,701 Patented Nov. 28, 1961 strip 10 having an approximately biconvex but substantially flat cross-section, as shown in FIG. 3. The strip is formed on each side with a series of spaced substantially G-shaped cut-outs 11 which leave the strip on each side with a series of spaced substantially dovetail-shaped edge portions 12. Each edge portion has an elongated edge 13 that extends in the direction of the length of the strip and that is substantially tangent with the legs 14 of the C-shaped cut-outs 11 so that each edge portion 12 presents at each of its ends a sharp point or barb 15. In the illustrated embodiment, the edges 13 are substantially parallel to the length of the strip 15 and, due to the biconvexity of the cross-section, the edges 13 constitute a sharp cutting edge.

The strip 10 is made of hard flexible material, such as steel or other metal, although a plastic of sufficient strength, flexibility and hardness may be used. The strip is deformable and capable of retaining a twist such as is shown in FIG. 2 once such twist has been imparted to it, ie, there is no resilient tendency on the part of the strip to assume the original untwisted shape shown in FIG. 1. Furthermore, thanks to the above-described configuration, the strip is particularly capable of being wound into the form of a coil, so that the strip will readily form a coil such as is shown in FIG. 4 where the convulations of the coiled strip are superposed upon each other. A thus-coiled strip will then freely uncoil and be readily susceptible to a twisting effect, particularly when dispensed from a dispenser of the type shown in above-mentioned application Serial No. 391,073, and this is due to the substantially constant width of the strip as well as to the relatively narrow central portion of the strip that is formed between the innermost portions of the cut-outs 1 1. Here it will also be noted that when the strip is in twisted condition, the points 15 and cutting edges 13 will be oriented in every direction, Whereas when the strip is in untwisted state, all parts of the strip will lie in the same plane so that it is a very simple matter first to coil the strip into the coil shown in FIG. 4 and thereafter to uncoil and impart a twist to the strip while the same is being laid.

It will be understood that the present invention is susceptible to modification in order to adapt it to different usages and conditions and, accordingly, it is desired to comprehend such modifications within this invention as may fall within the scope of the appended claims.

What is claimed is:

1. A fencing strip having a substantially fiat cross-section and being made of hard, flexible material comprising a plurality of spaced, substantially C-shaped recesses, the openings of said recesses being disposed toward the edge portions of said strip, pairs of leg portions at the outer ends of said C-shaped recesses, said leg portions terminating in sharp points, and said leg portions extending in opposite directions and being substantially parallel to the longitudinal axis of said strip, and edges between the points of the leg portions of two adjoining C-shaped recesses, said edges extending in the direction of the length of said strip.

2. A fencing strip according to claim 1, where said strip is twisted around its longitudinal axis.

3. A fencing strip according to claim 1, Where said strip is capable of retaining a twist.

4. A fencing strip according to claim 1, where said strip is coiled into a coil.

5. A fencing strip having a slightly biconvex cross-section and being made of hard, flexible material comprising two rows of spaced, substantially G-shaped recesses, the openings of said recesses being disposed toward the edge portions of said strip, pairs of leg portions at the outer ends of said C-shaped recesses, said leg portions terminating in sharp points, and said leg portions extending in opposite directions, being substantially parallel to the 10ngitudinal axis of said strip and being positioned at the very edges of said strip where said strip has its smallest cross-sectional dimension, and edges between the points of the leg portions of two adjoining C-shaped recesses, said edges extending in the direction of the length of said strip.

References Cited inthe file of this patent UNITED STATES PATENTS Allis June 18, Potts Apr. 1, Mauser May 1,

FOREIGN PATENTS Switzerland Nov. 1, 

